"VST3 marks an important milestone in audio technology with a completely rewritten code base providing not only many new features but also the most stable and reliable VST platform ever." ( See steinberg.net. )

The latest version of AudioLab supports the older Win32 API ( WaveAPI, Audio ACM ), the newer DirectShow and DMO; and allows, if needed, any mixture of these technologies. The developer can choose the technology and can switch from one to the other at any moment: AudioLab hides the complexity of the chosen technology and makes the components look almost identical from the developer's perspective.

The RAD Studio version is a set of native VCL and Firemonkey components of which all include now the powerful Mitov Runtime.

The Visual C++ version is a set of native Visual C++ classes (components).

The NET 2.0 and 4.0 (4.5 and 4.6 compatible) version is a set of managed .NET components. The .NET version has the same performance as the native versions, and supports all the Microsoft .NET languages including Visual Basic, C#, J#, F# and C++/CLI.

Due to the unique architecture of the OpenWire platform, the components are implemented the same way in Managed .NET and native Windows (32 and 64 bit) environments. The code to control a component from VB.NET, C++/CLI, C#, and J#, Visual C++ MFC, Delphi, and C++ Builder is almost identical. This allows the developers to migrate and share code between the different environments thus significantly improving the productivity.

Added Scope channel links (Allow channels to be paired together to form a zone)

Circular and arbitrary zones added to the Scope component.

Added Scope Step channel mode.

Added scope panning navigation mode.

Added Scope directional zooming.

Added Scope and Waterfall Axis and Level configuration buttons.

Added video layers support.

Added new examples.

New in Version 3.1

Added LowPass, HighPass, BandPass, and BandStop components.

Added ASFAudioPlayer component.

All libraries are available under .NET.

All design time features are now available in .NET

All .NET assemblies are signed.

The assemblies are registered in GAC.

All DLLs are made embedded resources in the assemblies.

Fixed some minor OpenWire problems.

Full RAD Studio 2007 support.

Fixed problems with Reversed and Vertical scope.

Added new custom step modes to the Scope and Waterfall.

Added data access methods to the Waterfall.

Added number of new design editors.

Enhanced help files.

Delphi 2005, BDS 2006, and RAD 2007 help files are now integrated.

Added new examples.

New in Version 3.0

Updated to IPP 5.1.

Added raw closed caption support (allows access to the CC text).

New faster multithreading buffer protection.

New faster buffer memory manager.

The DataAceessObjects for the buffers are now obsolete. The functionality is moved to the buffers.

The buffers raw data access methods now are called Read, Write and Modify. The ModifyData is split into Modify and Write to reduce unnecessary memory copy operations and to improve the performance.

Added 24 and 32 bit PCM audio buffer support.

Added higher than 44100 sample audio rates support.

Added multichannel (More than 2) audio support.

Added Generic generator components.

Added On/Off Switch component.

Added Snapshot component.

Added TALDSAudioCompressor and TALDSAudioDecompressor.

Enhanced ASF profile support.

Added basic Unicode support for Visual C++ MFC.

Fixed bug in CTStrings support in Visual C++ MFC.

Added Spectrum normalization.

Added Scope and Waterfall custom axis labels.

Added Scope channel value intersections support.

Added Scope and Waterfall Axis zooming and toolbars.

Added X/Y plotting support to the Scope.

Added Scope channel highlighting.

Added Scope Channel OnClick events.

Added Scope Cursor events.

Added Scope and Waterfall mouse value tip window.

Added Scope and Waterfall OnZoom events.

New in Version 2.2.1

Fixed a conflict with TChart.

Added Four CC property for the DirectShow Audio and Video compressions.

Improved Audio Mixer.

Added initial support for vertical Scope.

New in Version 2.2

Added BDS 2006 support.

Added Visual Studio 2005 support.

Added Speex compressor and decompressor components.

Added Vorbis compressor and decompressor components.

The Ogg Logger and Player now do not handle compression. Instead they leave the compression/decompression to other components such as Vorbis compressor and decompresor and just handle the Ogg format structures. This allows adding different types of Ogg compression.

Added Scope measurements and selections.

Added basic mouse wheel support.

Enhanced property pages.

Allows adding cursors from the property pages.

Allows reversed X axes for the Waterfall component.

The cursors and the markers now are available in the legend.

The Scope and the Waterfall can receive focus.

New Ogg Logger and Player.

Added Scope cursors, and property pages.

Enhanced Scope markers.

This version fully supports Visual C++.

New queued audio switch component for rapid switching between audio sources while running.

Added sample step in all the Spectrum component.

Added Waterfall markers.

Added custom draw functionality in the Scope channels.

Added Undo/Redo zoom functionality.

Added channel editor for the Scope.

Added Marker editor for the Waterfall.

Improved Audio Compression support.

New in Version 2.1

This version does not need any DLLs in order to work.

New compression and decompression components for Audio over IP applications.

AudioLab: Frequently Asked Questions

Q: Does AudioLab support the format of my Audio Files?

A: AudioLab supports both Win32 API and DirectShow technologies. Win32 API will allow you to play only Wave files. If you decide to use DirectShow AudioLab will use any DirectShow filter available on your system. If you have a DirectShow filter for a particular video format AudioLab will recognize the format and use the proper filter. This means that AudioLab is capable of using any format available today. If you have a file that you can’t play in AudioLab, it means that you probably don’t have the proper DirectShow filter. Please search the web and download the filter needed for the particular format.

Q: I can’t play my video file! What is wrong?

A: In order to play format other then basic Wave you must use the DirectShow TVLDSAudioPlayer component. If you still can’t play the file, please check if you have installed a DirectShow codec for the file format. AudioLab needs a codec available in the system in order to decode the file. A huge selection of codecs is available on the WEB.

Q: Do I have to purchase AudioLab?

A: AudioLab is free for non commercial purposes. This means that you can use it for personal pleasure, hobby, or evaluation purposes. If you are student you can also use it for free for your educational needs including school projects. If you are a tutor at present you also can use it for free for your classes. However in the near future a low cost tutor license will be available, and you will have to purchase it. Your students however will not need license to use the product at class.

Q: Is AudioLab multithreading? Will it stop streaming while I move the window with the mouse?

A: Yes. AudioLab is fully multithreaded and will not stop streaming while the main thread is busy.

Q: Does AudioLab support DirectShow?

A: Yes. AudioLab supports DirectShow 8.1 or higher.

Q: What version of DirectShow I need to run AudioLab?

A: AudioLab supports DirectShow 8.1 or higher.

Q: Can I capture and save audio sample out of the audio stream?

A: Yes. Use the TALGenericFilter to obtain the sample. Check the CustomFiltersDemo example in the demos directory.

Q: Can I create a audio on the fly?

A: Yes. Use the TALGenericFilter to generate the buffers. Check the “Quick Start” manual for more information.

Q: Can I process the audio faster than the normal audio speed.

A: Yes. Check the “Quick Start” manual for more information.

Q: I want to copy and paste parts of the audio a new file. Can AudioLab do that?

A: Yes. AudioLab uses DirectShow to play and record files. Many formats do not allow easy positioning and can’t be used with DirectShow Editing Services. AudioLab offers a different approach. It allows you to play even non seek enabled file to a specific position and copy a portion of the file into a new one. Check the “Quick Start” manual for more information.

Q: Can I play audio files from a Web URL?

A: Yes. You can use the TALDSAudioPlayer to play files as well as any audio URL from the web.

Q: I want to use AudioLab. Do I have to install DirectShow?

A: DirectShow is not required on your system if you are not planning to write application using the DirectShow components of the package.

Demonstrates applying an equalizer to an audio stream and saving the output to file

Volume Monitor Demo

Demonstrates plotting volume levels of playing audio

Waterfall demo

Displays a playing audio stream in a waterfall plot

Plot Wave Data demo

Demonstrates loading an entire WAV file and displaying in a scope

The libraries are licensed per developer, and there are no royalties required. Once you have purchased a developer license, you are free to distribute your final product without the need to pay any royalties or other fees as long as you comply with the following license agreement:

LICENSE - AGREEMENT

Users of the LabPacks Component Pack(Software) must accept these terms of license.

If you refuse to accept the terms of license, you may not use this software, and you have the right to return it within 30 days of the purchase date, and to receive your money back.

For your convenience a copy of this license agreement will be stored on your system during the installation.

This license grants you the following rights:

You have a non exclusive license to the Software. The Title and all intangible rights to the Software are the property of Mitov Software .

You may install and use one copy of the Software per computer assuming only one and the same person will use the Software on all of the computers. You may distribute any application that includes Software without any additional royalties beyond your initial license registration fee.

You can also create a reasonable set of copies of the product on different types of media, such as CD Rom or Type Backup, as far as those copies are used only for your own back up protection.

Description of the limitations.

You may not reverse engineer, decompile, or disassemble the Software.

The Software is licensed as a single product. You may not rent or lease the Software. You must treat the Software like any other copyrighted material except that you may either (a) a reasonable amount of copies of the Software solely for backup or archival purposes, or (b) install the Software multiple computers provided you keep the original solely for backup or archival purposes and only a single developer will use all of the copies.

You may not separate Delphi and C++ Builder components from this Software.

Each developer must have a valid license for the Software.

You may not create a competing component product using this Software.

Additional restriction to Delphi-VCL and C++ Builder components:

You may not distribute the Delphi-VCL components in a DCU (Delphi Compiled Unit) format. You can distribute the component only as a part of your executable or dynamic link library program in a compiled form.

You may not distribute the C++ Builder components in OBJ format. You can distribute the component only as a part of your executable or dynamic link library program in a compiled form.

Mitov Software grants a limited warranty with these restrictions:

THE SOFTWARE IS SUPPLIED AS IT IS. MITOV SOFTWARE AND ITS SUPPLIERS DISCLAIM ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, WITH REGARD TO THE SOFTWARE. NO LIABILITY FOR CONSEQUENTIAL DAMAGES. TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, IN NO EVENT SHALL MITOV SOFTWARE OR ITS SUPPLIERS BE LIABLE FOR ANY SPECIAL, INCIDENTAL, INDIRECT, OR CONSEQUENTIAL DAMAGES WHATSOEVER (INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS OF BUSINESS PROFITS, BUSINESS INTERRUPTION, LOSS OF BUSINESS INFORMATION, OR ANY OTHER PECUNIARY LOSS) ARISING OUT OF THE USE OF OR INABILITY TO USE THE SOFTWARE.